|
[Sponsors] |
January 19, 2021, 19:23 |
Ansys fluent
|
#1 |
New Member
Jack SSIlver
Join Date: Nov 2020
Posts: 16
Rep Power: 6 |
I am trying to simulate a turbulent flow through a mitre pipe. I have tried both the hexahedral mesh and the tetrahedral mesh but i am not getting any good results. I am interested in the dynamic wall pressures , however, when i decrease the size of the tetrahedral mesh, the pressures are way too high, and when i decrease the size of the hexahedral mesh, the pressures are extremely low. I am using the LES model, velocity around 95m/s. can any one help .. i think i have tried nearly everything
|
|
January 20, 2021, 00:31 |
|
#2 |
Senior Member
Alexander
Join Date: Apr 2013
Posts: 2,363
Rep Power: 34 |
as far as I remember, there is a limitation on max element size for LES
may be you may switch to simplified turbulent model, for instance k-w sst you my know, that usually changing mesh is one of the way to verify your model, if there is significant difference in results with mesh to mesh, it means, model is not good enough and you should move to more refined mesh
__________________
best regards ****************************** press LIKE if this message was helpful |
|
Tags |
ansys, cfd, fluent, piping, pressure |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
GPU acceleration in Ansys Fluent | flotus1 | Hardware | 63 | May 12, 2023 03:48 |
How to open Icem mesh in Ansys Fluent? | emmkell | FLUENT | 27 | February 6, 2018 04:34 |
Using ANSYS Fluent 18.0 on workstations with multiple network cards and PBS Pro | cheezum | Hardware | 0 | February 28, 2017 11:23 |
How to combine ANSYS Fluent and Structural analysis? | diwakar | ANSYS | 2 | June 18, 2015 13:07 |
error in opening fluent in ansys workbench | tmeysam92 | ANSYS | 3 | March 12, 2013 07:10 |